Indian Bank — Amazon refund not yet received

Address:

Pc Naidu Nagar, Mypod road, Nellore-524002

Amazon has already successfully processed refund into my account on August 09th but it still not showing in my account. Refund issued in August 14 alredy 7 days over but not credited amount. I already have complaint about the same on Indian Bank customer service but not solved yet.
My RRN([protected])
Kindly look into this problem. Thank you